road bed

常見例句

With the Ballastless track technology extensive used, the problem of the track on solid bed damage and rectification is paid more and more attention now.
摘要隨著無碴軌道技術的廣泛運用，整體道床產生的病害及維修問題也越來越引起重視。
The new rail is is being loaded onto the track bed.
軌道路基上正在裝新的鐵軌。
There is a special tool to impact the road when it is under construction so the base is solid.
有種特殊的工具可以在道路修筑過程中將路面壓緊，因此，路基是結實的。